Tube Holder, Clear Storage Box Back Catalog number: 400253 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9968-50 Sorbent Tube, Silica Gel, 8X110, 520/360, 50/BX Price on request 800170-10 Tube Holder Hose Barb Fitting (Packg of 10) Price on request 800259 Single Tube Holder Kit, 7-10 x 110mm Price on request